Journal
INTERNATIONAL JOURNAL OF SURGERY
Volume 20, Issue -, Pages 107-112Publisher
ELSEVIER
DOI: 10.1016/j.ijsu.2015.05.051
Keywords
Surgical duration; Anesthesia time; Post-operative UTI; 30-Day outcomes; NSQIP
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Introduction: While the relationship between surgical duration and post-operative morbidity has been well-studied in specific procedures for specific complications, there is a paucity of literature that addresses whether longer surgeries increase the risk of Urinary Tract Infection (UTI). We have performed the first study to elucidate the relationship between increasing surgical duration and UTI events across surgical specialties via the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database. Methods: Patients, who received general anesthesia, were stratified into quintiles by a calculated z-score for their anesthesia time based on the standard deviation and mean of their respective current procedural terminology (CPT) code. Z-score analysis standardized interprocedural differences in anesthesia time. Multivariate regression analysis was employed to evaluate the independent association of anesthesia time with risk of UTI. Multiple sub-analyses were performed to evaluate the robustness of our results. Results: 22,305 patients (1.5%) experienced a UTI. Compared to the mean procedural duration as represented by the 3rd quintile, procedures of longer duration were independently associated with increased risk of UTI (OR, 1.156 (95% CI 1.104-1.21); OR, 1.758 (95% CI 1.682-1.838)) while procedures of shorter duration were associated with reduced risk (OR, .928 (95% CI .873-.987); OR, .955 (95% CI .906-1.007)). Conclusions: Our findings suggest that increasing surgical duration may independently worsen the risk of post-operative UTI pan-surgically. We hope that our results will help guide decision making regarding the safety of combination procedures as well as improve pre-operative risk stratification. Published by Elsevier Ltd on behalf of IJS Publishing Group Limited.
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